/*
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 * and open the template in the editor.
 */
package com.server.servlets;

import com.server.model.Login;
import com.server.util.LoginsSingleton;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import com.server.dao.LoginDAO;

/**
 *
 * @author VictorMatos
 */
public class LoginServlet extends HttpServlet {

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

       HttpSession session = request.getSession(); 
       LoginDAO loginDAO01 = new LoginDAO();
       Login login01 = new Login();
       String  _user = request.getParameter("username");
       String  _pass = request.getParameter("senha"); 
          
       //LOGOUT
       if (_user == null && _pass == null){
                    
        session.removeAttribute("Perfil");
        session.removeAttribute("Usuario");
        session.invalidate();
        LoginsSingleton.getInstance().removeUser();
       
        response.sendRedirect("index.jsp");
        
       }else{
        
       //LOGIN          
       login01.setUsuario(_user);
       login01.setSenha(_pass);
       
       login01 = loginDAO01.ValidaUsuarioSenha(login01);
       
        if (login01 != null) {           

                    LoginsSingleton.getInstance().addUser();
                    request.setAttribute("userLogin", login01);
                                  
                    session.setAttribute("Perfil",login01.getPerfil());
                    session.setAttribute("Usuario",login01.getUsuario());
                                             
                   request.getRequestDispatcher("home.jsp").forward(request, response);
        } else {
            request.setAttribute("loginMsg", "Parametros inválidos"); 
            request.getRequestDispatcher("index.jsp").forward(request, response);
        }
    }

 }   // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
